/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package studio.raptor.ddal.common.retry;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.concurrent.TimeUnit;

import static com.google.common.base.Preconditions.checkArgument;


/**
 * {@link RetryPolicy} implementation that always <i>allowsRetry</i>.
 */
public class RetryForever implements RetryPolicy {
    private static final Logger log = LoggerFactory.getLogger(RetryForever.class);

    private final int retryIntervalMs;


    public RetryForever(int retryIntervalMs) {
        checkArgument(retryIntervalMs > 0);
        this.retryIntervalMs = retryIntervalMs;
    }


    @Override
    public boolean allowRetry(int retryCount, long elapsedTimeMs, RetrySleeper sleeper) {
        try {
            sleeper.sleepFor(retryIntervalMs, TimeUnit.MILLISECONDS);
        } catch (InterruptedException e) {
            Thread.currentThread().interrupt();
            log.warn("Error occurred while sleeping", e);
            return false;
        }
        return true;
    }
}
